This article reviews recent theoretical and experimental advances in the fundamental
understanding and active control of quantum fluids of light in nonlinear optical systems. In …

The nonlinear propagation of coherent optical fields has been extensively explored in the
framework of nonlinear optics, while the linear propagation of incoherent fields has been …

A laser is based on the electromagnetic modes of its resonator, which provides the feedback
required for oscillation. Enormous progress has been made toward controlling the …

Nanophotonics is a rapidly develo** field of research with many suggestions for a design
of nanoantennas, sensors and miniature metadevices. Despite many proposals for passive …

Although the temperature of a thermodynamic system is usually believed to be a positive
quantity, under particular conditions, negative-temperature equilibrium states are also …

Theoretical studies on wave turbulence predict that a purely classical system of random
waves can exhibit a process of condensation, which originates in the singularity of the …

The discovery of the spontaneous mode-locking of lasers,, that is, the self-starting
synchronous oscillation of electromagnetic modes in a cavity, has been a milestone of …

Engineering broadband light absorbers is crucial to many applications, including energy-
harvesting devices and optical interconnects. The performances of an ideal absorber are …

Spatiotemporal mode‐locking (STML) in fiber lasers are of interest in applications such as
optical communications, nonlinear imaging, and precision machining. To date, STML fiber …

Abstract The observation of Bose–Einstein condensation, in which particle interactions lead
to a thermodynamic transition into a single, macroscopically populated coherent state, is a …